Results 51 to 60 of about 368 (128)

Improved Power Tracking and Performance Evaluation Using a Tri‐Meta Hybrid DOA–CSA–WOA‐Based MPPT Controller for Standalone PV System

Energy Science &Engineering, EarlyView.
A Tri‐Meta Hybrid DOA–CSA–WOA Maximum Power Point Tracking controller is developed to enhance photovoltaic system performance. The proposed approach achieves higher tracking efficiency, faster convergence, and robust operation under dynamic irradiance and partial shading conditions.
Ali Abbas, Muhammad Farhan, Nouman Safdar, Muhammad Junaid Rabbani, Mohammad Rashed M. Altimania, Waleed Mohammed Abdelfattah, Hafiz Mudassir Munir   +6 more
wiley   +1 more source

Studies of the horizontal inhomogeneities in NO₂ concentrations above a shipping lane using ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements and validation with airborne imaging DOAS measurements [PDF]

Atmospheric Measurement Techniques, 2019
This study describes a novel application of an “onion-peeling” approach to multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements of shipping emissions aiming at investigating the strong horizontal inhomogeneities in NO2 over a ...
A. Seyler, A. C. Meier, F. Wittrock, L. Kattner, L. Kattner, B. Mathieu-Üffing, B. Mathieu-Üffing, B. Mathieu-Üffing, E. Peters, E. Peters, A. Richter, T. Ruhtz, A. Schönhardt, S. Schmolke, J. P. Burrows   +14 more
doaj   +1 more source

Validation of tropospheric NO₂ column measurements of GOME-2A and OMI using MAX-DOAS and direct sun network observations [PDF]

Atmospheric Measurement Techniques, 2020
Multi-axis differential optical absorption spectroscopy (MAX-DOAS) and direct sun NO2 vertical column network data are used to investigate the accuracy of tropospheric NO2 column measurements of the GOME-2 instrument on the MetOp-A satellite platform and
G. Pinardi, M. Van Roozendael, F. Hendrick, N. Theys, N. Abuhassan, N. Abuhassan, A. Bais, F. Boersma, F. Boersma, A. Cede, A. Cede, J. Chong, S. Donner, T. Drosoglou, A. Dzhola, H. Eskes, U. Frieß, J. Granville, J. R. Herman, J. R. Herman, R. Holla, J. Hovila, H. Irie, Y. Kanaya, D. Karagkiozidis, N. Kouremeti, N. Kouremeti, J.-C. Lambert, J. Ma, E. Peters, A. Piters, O. Postylyakov, A. Richter, J. Remmers, H. Takashima, H. Takashima, M. Tiefengraber, M. Tiefengraber, P. Valks, T. Vlemmix, T. Wagner, F. Wittrock   +41 more
doaj   +1 more source

Evaluating Reference Evapotranspiration (ETo) Calculation Methods and Quantifying Climate‐Driven Change in Irrigation Demand Across Nepal's Terai

International Journal of Climatology, EarlyView.
Framework illustrating the comparison of different reference evapotranspiration (ETo) estimation methods and the integration of baseline ETo, crop water requirement (CWR), and irrigation water requirement (IWR) calculations with downscaled CMIP6 climate projections under SSP245 and SSP585 scenarios for the mid‐century and late‐century periods across ...
Umesh Kumar Sujakhu, Rajesh Khatakho, Naresh Suwal, Ayush Poudel   +3 more
wiley   +1 more source

Eight-component retrievals from ground-based MAX-DOAS observations [PDF]

Atmospheric Measurement Techniques, 2011
We attempt for the first time to retrieve lower-tropospheric vertical profile information for 8 quantities from ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) observations.
H. Irie, H. Takashima, Y. Kanaya, K. F. Boersma, L. Gast, F. Wittrock, D. Brunner, Y. Zhou, M. Van Roozendael   +8 more
doaj   +1 more source

Five Years of Spatially Resolved Ground-Based MAX-DOAS Measurements of Nitrogen Dioxide in the Urban Area of Athens: Synergies with In Situ Measurements and Model Simulations

Atmosphere, 2021
Long-term nitrogen dioxide (NO2) slant column density measurements using the MAX-DOAS (multi-axis differential optical absorption spectroscopy) technique were analyzed in order to demonstrate the temporal and horizontal variability of the trace gas in ...
Myrto Gratsea, Eleni Athanasopoulou, Anastasia Kakouri, Andreas Richter, Andre Seyler, Evangelos Gerasopoulos   +5 more
doaj   +1 more source

Bio‐guided fractionation of (9Z)‐5,8,11‐trihydroxyoctadec‐9‐enoic acid from Abelmoschus sagittifolius root as a potent α‐glucosidase inhibitor: An integrated in vitro and in silico study

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Abelmoschus sagittifolius stands out as a valuable medicinal source for developing functional food targeting type 2 diabetes. This study investigated the α‐glucosidase inhibitory potential of an active fraction obtained from A. sagittifolius roots (ASR), enriched in (9Z)‐5,8,11‐trihydroxyoctadec‐9‐enoic acid (OA), using both enzyme ...
Nguyen Phuong Mai, Nguyen Van Quan, Nguyen Dang Duc, Tran Dang Xuan   +3 more
wiley   +1 more source

Harnessing Spatial and Multi‐Criteria Decision Analysis (MCDA) to Optimize Land Suitability for Kenaf Cultivation in Kelantan: Pathways for Sustainable Economic Development

Land Degradation &Development, EarlyView.
ABSTRACT In Kelantan, entrenched land degradation and extensive idling of agricultural lands exacerbate rural poverty. Current top‐down planning often overlooks local geographic and social constraints, despite state initiatives to convert idle lands and strengthen rural livelihoods.
Nur Afiqah Ariffin, Zainol Jamil, Yaniza Shaira Zakaria, Nur Ain Che Mat Ali, Azizul Ahmad   +4 more
wiley   +1 more source

Ability of the MAX-DOAS method to derive profile information for NO₂: can the boundary layer and free troposphere be separated? [PDF]

Atmospheric Measurement Techniques, 2011
Multiple Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) instruments can measure from the ground the absorption by nitrogen dioxide (NO2) of scattered sunlight seen in multiple viewing directions.
P. Wang, P. F. Levelt, L. F. L. Gast, A. J. C. Berkhout, A. J. M. Piters, T. Vlemmix   +5 more
doaj   +1 more source

Emergency Care Needs in an Asymmetric Conflict: A Facility‐Based Cohort Study From Israel on October 7, 2023

World Journal of Surgery, EarlyView.
In an armed conflict with loss of territorial control and reduced EMS access, healthcare planners may need to anticipate significant prehospital death and that many patients arrive at hospital informally. ABSTRACT Background Due to the deteriorating global security situation, many countries are preparing their health systems for armed conflict. Wartime
Maximilian P. Nerlander, Mohammad Abu Issa, Mor Saban, Gili Givaty, Yaniv Ovadia   +4 more
wiley   +1 more source